bad led is blinking

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ali_aam
Posts: 2
Joined: Wed Jun 16, 2010 1:17 am

bad led is blinking

Post by ali_aam » Sun Feb 11, 2018 12:36 pm

i have some problem with crazy led module.
can anyone explain this video
https://www.youtube.com/watch?v=FQlARMhAyJQ

Valen
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Joined: Wed Dec 22, 2010 2:05 am

Re: bad led is blinking

Post by Valen » Wed Feb 21, 2018 3:12 pm

Visual inspection usually does not show how electrons are flowing. 1st rule of troubleshooting electronics is "Measure Voltages". And instead of a video with hidden away wiring please provide a matching schematic and part information of the led modules.

lyndon
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Location: Minnesota, USA

Re: bad led is blinking

Post by lyndon » Thu Feb 22, 2018 11:43 am

Valen wrote:
Wed Feb 21, 2018 3:12 pm
Visual inspection usually does not show how electrons are flowing. 1st rule of troubleshooting electronics is "Measure Voltages". And instead of a video with hidden away wiring please provide a matching schematic and part information of the led modules.
Ah, but sometimes it can :-)

Valen
Support Volunteer
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Joined: Wed Dec 22, 2010 2:05 am

Re: bad led is blinking

Post by Valen » Thu Feb 22, 2018 2:08 pm

That's why I said usually!

Nat_Vanish79
Posts: 4
Joined: Mon May 28, 2018 12:46 am

Re: bad led is blinking

Post by Nat_Vanish79 » Tue May 29, 2018 2:54 am

Yeah, visual inspection is not really reliable. You still will have to measure volatges to check the degree of your fault, since you cannot accurately estimate the level of voltage across (or current through) by changes in illumination.

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